Salsa Verde Chicharrón Tacos

Name: Salsa Verde Chicharrón Tacos
Cook time: 2 h 10 min
Total time: 2 h 10 min
Cuisine: Mexican
Ingredients: 1 3/4 cups masa harina, preferably Bob’s Red Mill; 1 1/4 cups water; 1 1/2 pounds tomatillos, husked and rinsed; 2 cups water; 1/2 medium white onion, chopped; 3 large garlic cloves, minced; 2 large scallions, chopped; 1/2 cup chopped cilantro; 1/4 cup chopped epazote or 1 tablespoon chopped oregano; 1 teaspoon cumin seeds; Fine sea salt; 1/4 pound thick, crisp chicharrones, plus crushed chicharrones for garnish (see Note); 1/3 cup water; 1 1/2 cups Salsa Verde; Salt; Six 8-inch Corn Tortillas or fresh corn tortillas, warm; Sour cream; purslane or watercress, for serving